PIC16C65A-10I/PQ - 8-bit RISC MCU, 7KB OTP, 44-MQFP | Microchip
MPN: PIC16C65A-10I/PQ ✗ Cuối đờiPIC16C65A-10I/PQ Tóm tắt
A PIC microcontroller is a compact, Harvard-architecture microcontroller that integrates a CPU, program memory, RAM, and peripheral peripherals into a single chip. PIC16C6X devices sit in the mid-tier of Microchip's 8-bit portfolio (PIC16 -> PIC microcontroller -> microcontroller -> embedded processor -> semiconductor), optimized for cost-sensitive industrial and embedded applications that need deterministic interrupt response and low power consumption rather than raw compute throughput.
Key features of the PIC16C65A-10I/PQ include a RISC CPU with 35 single-word instructions, fully static design supporting DC to 10 MHz clock input, and wide operating voltage range typical of 2.5V to 6.0V. The 7 KB OTP program memory and 192-byte RAM are sized for moderate firmware complexity (control loops, protocol stacks, sensor interfacing). Industrial-grade -40C to +85C qualification, in-circuit serial programming capability, and a 44-pin MQFP footprint ease PCB integration in legacy and new industrial designs.
The device uses CMOS EPROM/ROM technology, fully static logic, and a 14-bit instruction word. Low-power performance is characterized as <15 mA typical at 5V/4 MHz and <1 mA typical at 3V/32 kHz. Watchdog, power-on reset, brown-out detect, and code-protect features contribute to system robustness. Interrupts, a hardware USART, and capture/compare PWM blocks support motor control, instrumentation, and human-interface subsystems.
Typical applications include industrial automation controllers, motor and solenoid drive control boards, instrumentation front-ends with serial communication to a host, and embedded sensor nodes using I2C/SPI. The 44-MQFP package and industrial temperature range also suit legacy replacement, factory automation, and harsh-environment monitoring designs.
When designing with this part, plan OTP programming before final PCB assembly: OTP cannot be erased, so firmware must be validated on windowed or flash siblings first. The 44-pin footprint, 5V typical supply, and classic PIC16C6X peripherals make direct migration to PIC16F87X or PIC18 devices straightforward when more memory or in-system reprogrammability is needed.
This page synthesizes distributor stock, parametric data, drop-in same-brand alternatives, and design considerations not consolidated in the legacy datasheet, helping engineers and buyers accelerate sourcing and PCB redesign decisions.
Bộ thay thế dễ dàng lắp đặt cho PIC16C65A-10I/PQ — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16C65A-10I/PQ (cùng hình factor và footprint) — khác nhau ở Program Memory Size, Core Architecture, Package, Operating Temperature Range, Program Memory Type.
PIC16C65A-10/PQ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C65A-04/PQ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C64A-10I/PQ
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16C64A-20I/PQ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C64AT-20I/PQ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C64AT-10E/PQ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C64AT-04/PQ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C65A-10I/PQ Tỷ lệ tối đa & tính chất điện
| Family | PIC16C6X |
| Core Architecture | 8-bit RISC |
| Instruction Set | 35 single-word instructions |
| Tần số xung maksimum | 10 MHz |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 7 KB (4096 words x 14-bit) |
| Data RAM | 192 bytes |
| Operating Voltage Range | 2.5 V to 6.0 V (typical) |
| Supply Voltage (Nominal) | 5.0 V |
| Active Current at 5V/4 MHz | <15 mA typical |
| Sleep Current at 3V/32 kHz | <1 mA typical |
| Serial Interfaces | I2C, SPI, USART |
| Timers | 3 |
| PWM Channels | 2 |
| Watchdog Timer | Yes |
| Khoảng nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Hộp | 44-pin MQFP (PQ) |
| Kiểu lắp đặt | Surface Mount |
| Lead / Terminal Form | Gull Wing |
| Cấp MSL | 3 |
Cấu hình chân PIC16C65A-10I/PQ
| Chân 1 | OSC1/CLKIN — Oscillator crystal input or external clock input |
| Chân 2 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| Chân 3 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| Chân 4 | RA2/AN2 — PORTA bit 2 / Analog input 2 |
| Chân 5 | RA3/AN3/VREF — PORTA bit 3 / Analog input 3 / Voltage reference |
| Chân 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Chân 7 | RA5/SS/AN4 — PORTA bit 5 / SPI slave select / Analog input 4 |
| Chân 8 | RE0/RD/AN5 — PORTE bit 0 / Read control / Analog input 5 |
| Chân 9 | RE1/WR/AN6 — PORTE bit 1 / Write control / Analog input 6 |
| Chân 10 | RE2/CS/AN7 — PORTE bit 2 / Chip select / Analog input 7 |
| Chân 11 | VDD — Positive supply voltage |
| Chân 12 | VSS — Ground reference |
| Chân 13 | OSC2/CLKOUT — Oscillator crystal output / Clock output |
| Chân 14 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| Chân 15 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 I/O |
| Chân 16 | RC2/CCP1 — PORTC bit 2 / CCP1 I/O (PWM output) |
| Chân 17 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Chân 18 | RD0/PSP0 — PORTD bit 0 / Parallel Slave Port bit 0 |
| Chân 19 | RD1/PSP1 — PORTD bit 1 / Parallel Slave Port bit 1 |
| Chân 20 | RD2/PSP2 — PORTD bit 2 / Parallel Slave Port bit 2 |
| Chân 21 | RD3/PSP3 — PORTD bit 3 / Parallel Slave Port bit 3 |
| Chân 22 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Chân 23 | RC5/SDO — PORTC bit 5 / SPI data out |
| Chân 24 | RC6/TX/CK — PORTC bit 6 / USART async transmit / sync clock |
| Chân 25 | RC7/RX/DT — PORTC bit 7 / USART async receive / sync data |
| Chân 26 | RD4/PSP4 — PORTD bit 4 / Parallel Slave Port bit 4 |
| Chân 27 | RD5/PSP5 — PORTD bit 5 / Parallel Slave Port bit 5 |
| Chân 28 | RD6/PSP6 — PORTD bit 6 / Parallel Slave Port bit 6 |
| Chân 29 | RD7/PSP7 — PORTD bit 7 / Parallel Slave Port bit 7 |
| Chân 30 | VSS — Ground reference |
| Chân 31 | VDD — Positive supply voltage |
| Chân 32 | RB0/INT — PORTB bit 0 / External interrupt |
| Chân 33 | RB1 — PORTB bit 1 |
| Chân 34 | RB2 — PORTB bit 2 |
| Chân 35 | RB3/PGM — PORTB bit 3 / Low-voltage programming input |
| Chân 36 | RB4 — PORTB bit 4 |
| Chân 37 | RB5 — PORTB bit 5 |
| Chân 38 | RB6/PGC — PORTB bit 6 / ICSP clock input |
| Chân 39 | RB7/PGD — PORTB bit 7 / ICSP data I/O |
| Chân 40 | MCLR/VPP — Master clear reset / Programming voltage input |
| Chân 41 | NC — Not connected (per datasheet) |
| Chân 42 | NC — Not connected (per datasheet) |
| Chân 43 | NC — Not connected (per datasheet) |
| Chân 44 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
PIC16C65A-10I/PQ phù hợp cho 6 Áp dụngs: Industrial Automation Controller, Motor Control and PWM Drive Board, Instrumentation Front-End with Serial Host, Embedded Sensor Node, Human-Machine Interface (HMI) Controller, Legacy Industrial Board Drop-In Replacement.
Industrial Automation Controller
The PIC16C65A-10I/PQ fits industrial automation controllers because its 8-bit RISC core with 35 single-word instructions delivers deterministic execution and fast interrupt response required for real-time control loops. The 7 KB program memory accommodates ladder-logic-equivalent state machines, PID control routines, and serial protocol stacks for Modbus or proprietary fieldbus. Three timers and two PWM channels support motor speed control, solenoid drive timing, and encoder feedback decoding without external counters. The 10 MHz clock gives 100 ns instruction cycle, sufficient for sampling rates up to several kHz. USART, SPI, and I2C peripherals let the MCU interface to digital sensors, HMI displays, and host PLCs. Industrial -40C to +85C rating plus the 44-MQFP footprint with gull-wing leads ensure reliable operation on factory-floor PCBs subject to vibration and thermal cycling.
Được đề xuất
Motor Control and PWM Drive Board
The PIC16C65A-10I/PQ suits motor control boards because its two PWM channels and three timers provide the hardware building blocks for brushed DC, stepper, or BLDC commutation without external PWM ICs. The Capture/Compare/PWM (CCP) module generates precise PWM with 10-bit resolution at the 10 MHz clock, supporting variable-frequency drives and soft-start ramps. The 192-byte RAM holds commutation tables, current-loop state, and encoder counters. Industrial temperature rating enables under-hood or cabinet-mounted operation. The 44-MQFP package with 33+ I/O pins gives enough headroom for direction logic, brake signals, fault inputs, and current-sense ADC channels. Designers should plan for OTP programming prior to volume assembly since OTP cannot be erased.
Được đề xuất
Instrumentation Front-End with Serial Host
The PIC16C65A-10I/PQ serves instrumentation front-ends because the integrated USART, SPI, and I2C peripherals connect directly to ADCs, DACs, EEPROMs, and host computers without external glue logic. The 7 KB OTP stores calibration coefficients, linearization tables, and command parsers. The 192-byte RAM supports small acquisition buffers and ring buffers for serial streams. At 5V/4 MHz the part draws <15 mA typical, making it suitable for line-powered laboratory instruments. The 10 MHz headroom handles protocol bit-banging fallback for legacy peripherals. Industrial -40C to +85C qualification ensures operation in unheated equipment rooms or outdoor enclosures. Engineers can use the USART for RS-232/RS-485 communication with a host PC.
Được đề xuất
Embedded Sensor Node
The PIC16C65A-10I/PQ supports embedded sensor nodes because its low-power CMOS design draws <1 mA at 3V/32 kHz, enabling battery or energy-harvested operation. The 7 KB OTP holds sensor drivers, threshold detection, and transmit scheduling. Watchdog timer plus brown-out reset provide unattended reliability. I2C and SPI interfaces connect to temperature, pressure, and humidity sensors with no external bus controllers. USART links to wireless modems or wired fieldbus. Industrial -40C to +85C rating lets the node operate in outdoor enclosures. The 10 MHz clock supports protocol timing when waking for transmissions, while sleep current in the microamp range extends battery life between wake events.
Được đề xuất
Human-Machine Interface (HMI) Controller
The PIC16C65A-10I/PQ drives HMI subsystems because the 33+ digital I/O pins of the 44-MQFP package scan key matrices, drive LED or LCD displays, and read rotary encoders without external I/O expanders. The 192-byte RAM holds key debounce state, display refresh buffers, and menu state machines. PWM channels generate backlight dimming and buzzer tones. USART or SPI connects to a graphics controller or host processor. Industrial temperature rating supports factory-floor panels and outdoor kiosks. Designers can use the CCP module to drive LED brightness or haptic feedback with 10-bit resolution at the 10 MHz clock, enabling smooth visual transitions in user interfaces.
Được đề xuất
Legacy Industrial Board Drop-In Replacement
The PIC16C65A-10I/PQ functions as a same-footprint replacement for legacy PIC16C65B-10I/PQ and PIC16C65-10I/PQ boards because the silicon is fully register-compatible with the PIC16C6X family. Existing firmware, MPLAB toolchains, and programmers (PICSTART Plus, MPLAB PM3) work without modification. The 44-MQFP land pattern matches previous generations, allowing direct PCB substitution. Industrial -40C to +85C qualification matches the temperature profiles of older industrial equipment. 7 KB OTP and 192-byte RAM match prior memory maps. Designers replacing end-of-life boards should confirm oscillator type (RC vs crystal vs HS) and verify the new OTP blank parts program identically to the previous-generation silicon.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16C65A-10I/PQ — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16C65A-10/PQ | PIC16C65A-04/PQ | PIC16C64A-10I/PQ | PIC16C64A-20I/PQ |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-MQFP (PQ) | 44-MQFP (PQ) - same | 44-MQFP (PQ) - same | 44-MQFP (PQ) - same | 44-MQFP (PQ) - same |
| Max Clock Frequency | 10 MHz | 10 MHz | 4 MHz | 10 MHz | 20 MHz |
| Program Memory | 7 KB OTP | 7 KB OTP | 7 KB OTP | 3.5 KB OTP | 3.5 KB OTP |
| Data RAM | 192 bytes | 192 bytes | 192 bytes | 128 bytes | 128 bytes |
| Temperature Grade | Industrial (-40C to +85C) | Commercial (0C to +70C) | Commercial (0C to +70C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) |
| Serial Interfaces | I2C, SPI, USART | I2C, SPI, USART | I2C, SPI, USART | I2C, SPI, USART | I2C, SPI, USART |
| PWM Channels | 2 (CCP1, CCP2) | 2 | 2 | 1 | 1 |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND |
Bảo phân biệt quan trọng
- Larger memory than PIC16C64A family (vsPIC16C64A-10I/PQ)
- Industrial temperature range as standard (vsPIC16C65A-10/PQ)
- Higher-speed tier over 04 variants (vsPIC16C65A-04/PQ)
- Two PWM channels vs 64 family's one (vsPIC16C64A-10I/PQ)
Ghi chú thiết kế
OTP (One-Time Programmable) memory cannot be erased or rewritten. Any code bug discovered after programming requires discarding the silicon. Always validate firmware on windowed UV-erasable PIC16C65A or flash-based PIC16F877A siblings first. Pre-production verification of oscillator, watchdog, brown-out, and code-protect settings is mandatory to avoid scrapping programmed parts.
Place the 44-MQFP decoupling capacitor pair (100 nF ceramic + 10 uF tantalum or electrolytic) within 5 mm of the VDD/VSS pins, with short, wide traces to minimize supply noise. The MQFP exposed pad (die-attach paddle) should be soldered to a grounded copper pour for thermal dissipation and supply noise immunity - do not leave it floating.
Estimated: at 5V supply and 10 MHz clock with all peripherals active, the PIC16C65A draws around 15 mA typical and up to 25 mA worst case. Ensure the LDO or switching regulator supplying VDD can source at least 50 mA peak with adequate headroom. Place a bulk capacitor (>=22 uF) near the IC to support inrush during PWM or USART transmission bursts.
The MCLR/VPP pin must have a 10 kohm pull-up to VDD to keep the device out of reset during normal operation, plus a 0.1 uF capacitor to ground for noise filtering. ICSP programming requires isolation resistors on PGC/PGD if these pins share traces with other circuitry - this prevents contention during in-circuit programming.
The 44-MQFP package has a thermal resistance theta_JA of approximately 50 C/W. At 25 mA and 5V the dissipation is 125 mW, leading to a 6C junction rise above ambient - well within the industrial -40C to +85C rating. No heatsink is required, but PCB copper pours under the package help reduce die temperature in sealed enclosures.
Thông tin tuân thủ
Lead-free (Pb-free) finish indicated by Microchip product page. RoHS compliance status for the PQ package variant was not retrievable from the verified web data and is marked [DATA_NEEDED]. REACH compliance stated by Microchip. AEC-Q100 not applicable for non-automotive MCU. The PIC16C65A is NRND - check Microchip PCN history for the latest compliance and material declaration information.
